I thought this passage was an admonition against consuming blood in general, which is why kosher animals have to be slaughtered in a way that drains the blood from their bodies. That would seem to be an entirely separate issue from cannibalism.
Almost certainly a fictional character. No definite evidence of his existence has been found.
Not blood in general, but living flesh.
What does it mean that it was not until this post that I went EEEEWW! while reading this thread? 
Saw a “new” topic, saw that it already had so many replies that it was probably a bump, assumed that it was bumped because of this.
How much edible meat on a zombie body?
Not much at all … seven years of decay takes it’s toll …
But I agree with Darren Garrison … way too many replies to this post …
Some anti-abortion groups claim Planned Parenthood sells human fetuses to Chinese restaurants, but snopes says FALSE
Best guess, something like a white tail deer.
Or an anchovy pizza?
A soup seems like the best way to get nutrition from your fellow man.
Especially in a frozen environment like the Donner party. The Donner party had campfires to survive. Otherwise they would have perished by day 2.
One body would stay usable for weeks. Add snow to the pot, salt ,pepper and chunk of meat. Bring to boil. Simmer over a fire for awhile.
Not pleasant, but it’s better than starving and becoming an ingredient in your friend’s next meal. 
Does history record if the Donner party got Kuru afterwards?
I guess the hardest decision would be deciding when to start using bodies.
The natural revulsion would probably make many people wait too long. Until every scrap of food is gone and their bodies are shutting down.
A human broth soup might not save the badly malnourished. They would need a better diet to recover.
Starting earlier when there’s still a few potatoes and carrots to throw in the pot would be smarter. Using the meat to stretch out the other remaining ingredients for as long as possible.